Home / 22,212.30-33,310.35-7,421.70

Finding the Fourth Proportional to 22,212.30, 33,310.35 and 7,421.70

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Solution

The fourth proportional to 22,212.30, 33,310.35 and 7,421.70 is: 11,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.30 : 33,310.35 = 7,421.70 : x
  2. Step 2: Convert to fraction form
    22,212.30/33,310.35 = 7,421.70/x
  3. Step 3: Cross multiply
    22,212.30x = 33,310.35 × 7,421.70
  4. Step 4: Simplify right side
    22,212.30x = 247,219,424.60
  5. Step 5: Solve for x
    x = 247,219,424.60/22,212.30
  6. Step 6: Final answer
    x = 11,129.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.